<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>vfs_shadow_copy</title><link rel="stylesheet" href="../samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.75.2"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" title="vfs_shadow_copy"><a name="vfs_shadow_copy.8"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>vfs_shadow_copy &#8212; Make a Samba share read only for a specified time period</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="literal">vfs objects = shadow_copy</code></p></div></div><div class="refsect1" title="DESCRIPTION"><a name="id266340"></a><h2>DESCRIPTION</h2><p>This VFS module is part of the
	<a class="citerefentry" href="samba.7.html"><span class="citerefentry"><span class="refentrytitle">samba</span>(7)</span></a> suite.</p><p>The <code class="literal">vfs_shadow_copy</code> VFS module functionality
	that is similar to Microsoft Shadow Copy services. When setup properly,
	this module allows Microsoft Shadow Copy clients to browse
	"shadow copies" on Samba shares.
	</p><p>This module is stackable.</p></div><div class="refsect1" title="CONFIGURATION"><a name="id266827"></a><h2>CONFIGURATION</h2><p><code class="literal">vfs_shadow_copy</code> relies on a filesystem
	snapshot implementation. Many common filesystems have native
	support for this.
	</p><p>Filesystem snapshots must be mounted on
	specially named directories in order to be recognized by
	<code class="literal">vfs_shadow_copy</code>. The snapshot mount points must
	be immediate children of a the directory being shared.</p><p>The snapshot naming convention is @GMT-YYYY.MM.DD-hh.mm.ss,
	where:
       	</p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><code class="literal">YYYY</code> is the 4 digit year</p></li><li class="listitem"><p><code class="literal">MM</code> is the 2 digit month</p></li><li class="listitem"><p><code class="literal">DD</code> is the 2 digit day</p></li><li class="listitem"><p><code class="literal">hh</code> is the 2 digit hour</p></li><li class="listitem"><p><code class="literal">mm</code> is the 2 digit minute</p></li><li class="listitem"><p><code class="literal">ss</code> is the 2 digit second.</p></li></ul></div><p>
	</p><p>The <code class="literal">vfs_shadow_copy</code> snapshot naming convention can be produced with the following
	<a class="citerefentry" href="date.1.html"><span class="citerefentry"><span class="refentrytitle">date</span>(1)</span></a> command:
	</p><pre class="programlisting">
	TZ=GMT date +@GMT-%Y.%m.%d-%H.%M.%S
	</pre></div><div class="refsect1" title="EXAMPLES"><a name="id265734"></a><h2>EXAMPLES</h2><p>Add shadow copy support to user home directories:</p><pre class="programlisting">
        <em class="parameter"><code>[homes]</code></em>
	<a class="link" href="smb.conf.5.html#VFSOBJECTS" target="_top">vfs objects = shadow_copy</a>
</pre></div><div class="refsect1" title="CAVEATS"><a name="id265868"></a><h2>CAVEATS</h2><p>This is not a backup, archival, or version control solution.
	</p><p>With Samba or Windows servers,
	<code class="literal">vfs_shadow_copy</code> is designed to be an end-user
	tool only. It does not replace or enhance your backup and
	archival solutions and should in no way be considered as
	such. Additionally, if you need version control, implement a
	version control system.</p></div><div class="refsect1" title="VERSION"><a name="id265889"></a><h2>VERSION</h2><p>This man page is correct for version 3.0.25 of the Samba suite.
	</p></div><div class="refsect1" title="AUTHOR"><a name="id265899"></a><h2>AUTHOR</h2><p>The original Samba software and related utilities
	were created by Andrew Tridgell. Samba is now developed
	by the Samba Team as an Open Source project similar
	to the way the Linux kernel is developed.</p></div></div></body></html>
